SweepHelper

SweepHelper — Python Generator

A Python generator that rotates UVs on a Sweep object without converting it to polygons, and fixes unwanted profile twists on multi-segment paths. Youtube explanation: https://www.youtube.com/watch?v=y1CiOlw94t8

Add the Generator

Copy SweepHelper into your scene.

Link the Source Sweep

• In the generator’s User Data, link the Sweep you want to work with to the Source field.
• Apply your desired material to the generator’s texture tag.

UV Rotation

• Use the Rotation parameter to rotate UVs around the profile.
• Use Scale Factor 1 and Scale Factor 2 to adjust the texture scale.

Multi-Segment Paths

• If the path spline has multiple segments (islands), the generator automatically prevents unwanted profile twists between them.
• Each segment remains aligned consistently.

Notes

• Made in Cinema 4D 2025.
• Also works in Cinema 4D 2024, but textures may not display properly in the viewport (render is fine).